World shares are mixed as a US government shutdown adds to uncertainty

World shares are mixed as a US government shutdown adds to uncertainty Updated 9 mins ago U.S. futures have fallen and world shares are mixed after a U.S. government shutdown began. Chinese markets were closed for a weeklong holiday. China's central bank said it plans to inject more cash into the economy, while the Bank of Japan reported an improvement in business sentiment among large manufacturers. On Tuesday, U.S. stocks wrapped up another winning month, as investors appeared to be taking the prospect of a shutdown in stride. The S&P 500 rose 0.4% and the Dow gained 0.2%, setting an all-time high. The Nasdaq composite added 0.3%. Past U.S. government shutdowns have had a limited impact on the economy and markets.